19418625

素因数分解:

$3^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:483

約数の個数: 48

約数和(自身を含む): 35944272

約数和(自身を除く): 16525647

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 125, 205, 225, 369, 375, 421, 615, 1025, 1125, 1263, 1845, 2105, 3075, 3789, 5125, 6315, 9225, 10525, 15375, 17261, 18945, 31575, 46125, 51783, 52625, 86305, 94725, 155349, 157875, 258915, 431525, 473625, 776745, 1294575, 2157625, 3883725, 6472875, 19418625]

約数ペア:

[(1, 19418625), (3, 6472875), (5, 3883725), (9, 2157625), (15, 1294575), (25, 776745), (41, 473625), (45, 431525), (75, 258915), (123, 157875), (125, 155349), (205, 94725), (225, 86305), (369, 52625), (375, 51783), (421, 46125), (615, 31575), (1025, 18945), (1125, 17261), (1263, 15375), (1845, 10525), (2105, 9225), (3075, 6315), (3789, 5125)]